Motor-assisted bicycle



FIG. 1 is a front right perspective view of a motor-assisted bicycle showing our new design;

FIG. 2 is a front left perspective view thereof;

FIG. 3 is a right rear perspective view thereof;

FIG. 4 is a left rear perspective view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a left elevational view thereof;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a top plan view thereof; and,

FIG. 10 is a bottom plan view thereof. 

The ornamental design for a motor-assisted bicycle, as shown and described. 